Simple Theoretical Probability

Front

What is probability?

Back

Probability is a measure of how likely an event is to occur, expressed as a number between 0 (impossible) and 1 (certain).

Front

What does a probability of 0 mean?

Back

A probability of 0 means that the event is impossible and will not happen.

Front

What does a probability of 1 mean?

Back

A probability of 1 means that the event is certain to happen.

Front

What is the probability of an unlikely event?

Back

An unlikely event has a probability closer to 0.

Front

How do you calculate the probability of a single event?

Back

The probability of a single event is calculated as the number of favorable outcomes divided by the total number of possible outcomes.

Front

What is the probability of rolling a 4 or 6 on a fair die?

Back

Front

What is the probability of choosing a blue marble from a bag with only red marbles?

Back

The probability is 0, as there are no blue marbles to choose from.

Front

What is the probability of NOT landing on purple when spinning a spinner with 7 equal sections, 1 of which is purple?

Back

Front

What is the probability of spinning yellow or blue on a spinner with 7 sections, 3 of which are yellow and 1 is blue?

Back

Front

What is a certain event in probability?

Back

A certain event is an event that is guaranteed to happen, with a probability of 1.